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Login Security

It is important to give a unique login name and password to every person on the network.
Rights Security

Based upon your username, you are given rights like Read-Only Access or Read-Write Access. A
combination of rights can also be granted to the same user for network security.

Try It Out #Information Literacy

Name the different network topologies.
1. ______________ 2. ______________ 3. ______________
4. ______________ 5. ______________

Flashback Time

¨ A computer network is composed of multiple computers connected together for the purpose of
communicating with each other and sharing data and resources.
¨ Network Interface Card is a device which is attached to a computer to enable it to communicate
over the network.
¨ A hub simply forwards packets to all the other computers connected to it.

¨ Switches send incoming data to the desired destination only.
¨ Bluetooth is a wireless technology that lets you talk and share information like voice, music
and videos.
¨ Network topology is an arrangement of network in which various computers are connected to
one another.
¨ On the basis of network topology, network can be classified into five main types bus topology,
ring topology, star topology, mesh topology and tree topology.
¨ Network security means protecting data and resources from access by unauthorised persons.

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